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Answer:
B
Step-by-step explanation:
let y = f(x) and rearrange making x the subject
y = (2x - 4)² ( take the square root of both sides )
= 2x - 4 ( add 4 to both sides )
+ 4 = 2x ( divide terms on both sides by 2 )
+ 2 = x
x = + 2
Change y back into terms of x
(x) = 
+ 2, x ≥ 0
Answer:
d= 2
Step-by-step explanation:
To find the common difference, take the second term and subtract the first
-2 - (-4)
-2+4 = 2
We add 2 each time
Lets check
Take the third term and subtract the second
0- -2
0+2 =2
The common difference is 2
5 times 35÷7=5 understand?
